Mesenteric ischemia
Anatomy ◼ The arterial supply of the small bowel is predominantly from the celiac axis and superior mesenteric artery (SMA). ◼ The inferior mesenteric artery (IMA) and the internal iliac…
Bowel wall thickening
Anatomy, embryology, pathophysiology ◼ Most of the small and large bowels originate from the midgut, except the proximal duodenum (up to the ampulla of Vater), which originates from the foregut,…
Small bowel obstruction
Anatomy, embryology, pathophysiology ◼ The small bowel is a long, mobile, and compressible tubular structure located in the mid-abdomen, surrounded circumferentially by the large bowel. ◼ The small bowel caliber…
Hollow viscus perforation
Anatomy, embryology, pathophysiology ◼ Extraluminal air is a worrisome finding that should immediately heighten the suspicion of the radiologist to a potentially life-threatening complication. ◼ The gastrointestinal (GI) tract is…
Gastric wall thickening/masses
Anatomy, embryology, pathophysiology ◼ The stomach is anatomically subdivided into the cardia, fundus, body, and antrum, with inflow regulated by the lower esophageal sphincter and outflow by the pyloric sphincter….
Gastrointestinal fluoroscopy
Techniques ◼ Fluoroscopy is an imaging modality where continuous x-ray images are obtained to evaluate the body in real time, often with the aid of administered radiopaque contrast material (…
Abdominal radiography
Anatomy, embryology, pathophysiology ◼ There are five distinct densities in plain radiography, four of which are natural: gas (black), fat (dark gray), soft tissue (medium gray), calcifications (white), and metal…
Section II Structured Reports in Cancer Imaging
Thomas W. Loehfelm and Victoria Chernyak 10 Hepatocellular Carcinoma: LI-RADS and OPTN 10.1 Template Clinical information: Etiology of cirrhosis: [toxic or metabolic, including EtOH/chronic hepatitis B/congenital hepatic fibrosis (LI-RADS v2018…
Medical Imaging Technologies and Imaging Considerations for 3D Printed Anatomic Models
Medical imaging technologies, which allow us to “see into” and understand living systems, play a significant role in biology and medicine. The X-ray has paved the way for many high-tech…
3D Printed Anatomic Models and Guides
Introduction Three-dimensional (3D) printed anatomic models and guides designed from volumetric medical imaging data are used clinically to provide increased comprehension of anatomy, more exact pathology evaluation, and more precise…
